> ## Documentation Index
> Fetch the complete documentation index at: https://docs.crossmint.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Releasing Sepolia support on all EVM L2s

> Addition of Sepolia testnet support for all EVM chains and phased deprecation plan for Goerli testnet across all networks

**Starting today, Sepolia can be used for all EVM chains in staging. Review
this announcement to learn about how to use it, as well as the deprecation
timeline for Goerli.**

<Note>Action may be required if you're currently using Goerli with Crossmint</Note>

## Using Sepolia for test collections

* The chain identifiers for sepolia testnets are `arbitrum-sepolia` (for both
  Arbitrum One and Nova), `base-sepolia`, `ethereum-sepolia`,
  `optimism-sepolia`, and `zora-sepolia`.
* You can use them in all APIs that support a chain selector, including
  Minting APIs (e.g.
  [Create NFT Collection](api-reference/minting/collection/create-collection))
  and wallets (e.g.
  [Get NFTs from Wallet](api-reference/wallets/get-nfts-from-wallet)).
* You can import Ethereum Sepolia contracts for payments or minting from the
  console UI today. All other chains are coming on Tue 6th of February.

## Goerli deprecation: Phase 1 (Feb 6 2024)

* Starting on `Tue 6th of Feb`, the following chain identifiers will default to
  sepolia if used in Staging: `arbitrum`, `arbitrumnova`, `base`, `ethereum`,
  `optimism`, `zora`.
* The recommended approach is to specify the full testnet name, for easier
  migration in future testnet deprecations.
* It will no longer be possible to import new Goerli collections for payments.
* You will still be able to use previously created/registered collections in
  Goerli.

## Goerli deprecation: Phase 2 (Feb 9 2024)

* Starting on `Friday 9th of Feb`, Goerli will stop working for any Crossmint
  product.
* Existing collections in Goerli will be removed, due to the inability to fetch
  NFT and contract metadata reliably as the chains are shut down.

If you have further questions regarding this, we are here to help. Contact
**[Crossmint Support](https://help.crossmint.com/hc/en-us/requests/new?ticket_form_id=9718928922893/?utm_source=docs)**.